4

Clean Rooms

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4.1      INTRODUCTION

With the advent of microprocessors and photonics devices, a need for specialized manufacturing arose. The reason processor speeds have been constantly increasing is because the size of the physical components has been decreasing. Since the size of processor conductors has decreased into the nanometer range, an ultra-clean environment to produce these chips has become necessary. Fabricating microprocessors was the original purpose for clean rooms.

A clean room is a very clean environment that has an extremely low level of pollutants such as dust, airborne microbes, aerosols, humidity, and chemical vapors. ...

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